Rob Kardashian and pregnant Blac Chyna took a breather from each other after getting into an explosive fight over the weekend, sources tell Us Weekly. According to one insider, the engaged couple broke up for a couple of hours following their spat.

“They had a fight. It was one of those things where they broke up for a few hours to cool down,” the source explains to Us, adding that their feud was ignited by “the pressure of filming the show and everything moving too fast.”

“Rob is just not used to filming again, and it’s been hard on him,” the insider continues, explaining that jumping back into life hasn’t been easy on the Arthur George sock creator, who spent the past three years battling weight gain and depression.

“He isn’t used to this pace,” the source says. “He was doing nothing for years.”

Another source confirms that the pressure of it all got to Kardashian. “Let’s not forget he hasn’t been doing the filming schedule in years,” the second insider tells Us. “He’s very vulnerable and not used to it.”

Despite their brief break — during which Kardashian deleted all signs of his pregnant fiancée from his social media — Chyna understands what her future husband is going through. “Chyna is trying to be patient with him,” the source says.

This isn’t the first time that Kardashian has gone rogue on social media. Back in March, the couple got into a similar fight and Kardashian deleted his Instagram snaps, only to get back together with the makeup artist days later.

“He always gets emotional and deletes things on social media when that happens,” the first source concludes. “That’s how he is, he’s very emotional. But things are fine now."